System and method for preamble detection in MIMO narrowband power line communications
US12009961B2 · kind B2 · utility
0Cited by
9References
17Claims
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Key dates
| Filing date | Jan 6, 2021 |
| Grant date | Jun 11, 2024 |
| Priority date | — |
| Expiry date | Jan 6, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/188
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A PLC network system and method operative with OFDM for generating MIMO frames with suitable preamble portions configured to provide backward compatibility with legacy PLC devices and facilitate different receiver tasks such as frame detection and symbol timing, channel estimation and automatic gain control (AGC), including robust preamble detection in the presence of impulsive noise and frequency-selective channels of the PLC network. A PLC device may include a delayed correlation detector and a cross-correlation detector operating in concert to facilitate preamble detection in one implementation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.